Paper-feeding and stencil-duplicating apparatus.



I PATENTED AUG. 14, 1906.

A. B. DICK. :PAPEB. FEEDING AND STENGIL DUPLIGATING APPARATUS.

- APPLICATION FILED r1113. 4 1905..

I 2 SHEETS-SHEET 1.

WITNESSES: I INVENTOR X W W 426 W ATTORNEY N0- 828',465. PATENTED AUG. 14, 1906.

A; B. DICK. PAPER FEEDING AND STENCIL DUPLIGATING APPARATUS.

APPLICATION FILED FEB. 4. 1905.

2 HEET 5-SHEET 2.

UNITED sTA Js PATENT OFFICE.

ALBERT B. DICK, OF LAKE FOREST, ILLINOIS, ASSIGNOR'TO A. B. DICK COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

PAPER-FEEDING AND STENCIL DUPLICATING APPARATUS.

Specification of Letters Patent.

Patented Aug. 14, 1906.

To all whom it may concern.-

. Be it known that I, ALBERT B. DICK, a citizen of the United States, residing at Lake Forest, inthe county of Lake and State of Illinois, have invented a cert ain new and useful Improvement in Paper-Feeding and Stencil-Duplicating Apparatus. of whichthe following 1s a description. The present invention relates generally to subject-matter similar to that disclosed in Letters Patent No. 749,984, granted to me January 19, 1904. Its object is to perfect a paratus of the character there referred to, c 'efiy with regard to the mechanism for separating and feeding successive sheets of impression-paper from the under side of a pile and forwarding the same to the stencilprmtlng or other apparatus, by means where- I of Sue sheets are to be printed or otherwise,

treated.

More specifically, the present invention relates, therefore, to improvements in the mechanism whereby successive sheets are fed from the under side of the pile, the passage of more than one sheet at a time is effectively revented, and the sheet being fed is passed continuously and uniformly to the printing or other device.

The invention further includes provision for'adjustment of certain members of the feeding mechanism to allow forvariation in the'thickness or character of the sheets.

In carrying out the invention'I employ generally a separator-roll underlying the forward end of the sheet pile and one or more feed-rolls adapted to receive a sheet from such pile and ass the same rearwardly toward the printing or other device. By suitable mechanism of any desired form I preferably give to the se arator-roll and to one or more of the fee -rolls an intermittent movement, and over one of the feed-rolls I arrange a paper-stopping device, preferably (although not necessarily) in the form of a roll or rolls operating (either continuously or intermittently) in the direction op osite that of the movement of the feed-rol and between the eri hery whereof and that of such feed-roll t e s cots are adapted to pass.

One part of the present invention concerns the means whereby such a pa er-stopping device may be readily regulate with respect to its relation to the feed-roll in order to position. The drum adaptthe mechanism for feeding sheets of varyingthirkness.

Another feature of the invention concerns means for passing a sheet from the sop rating and feeding mechanism to a stem-ilprinting or other device, and this in the present, instance takes the form of an endless belt suit ably driven and adapted to receive the sheet from the feeding mechanism proper and to pass the same continuously rearward to the point of reaction with the stem-ilprinting or other device.

Other features of the invention will be re ferred to in connection with the description of the two lttli' mentioned. I

aThe invention is illustrated in the accompanying drawings, in which-' Figure 1 is a longitudinal central section of a combinedpaper-feeding and stencil-printing apparatus employing my invention. Fig. 2 is a plan view illustrating the major portion of the mechanism shown in Fig. 1; and Fig. 3 is an end elevation, on enlarged scale, of the paper-stopping device illustrated in igs. 1 and 2 and its adjusting mechanism.

Referring to the drawings, in which similar letters denote corresponding parts, the mechanism. is here shown as comprising generally the base A, carrying a supporting-frame consisting of. side plates A A In these are mounted in the present embodiment of the invention the 1 rotary stencil-duplicating drum B, having a stencil upon the periphery thereof, and underlying such drum 9.. ressure roll C, mounted in hinged arms 0, aving coacting cams a, wherebythe'pressureroll C is thrown to 0 erative or inoperative is rotated in any suitable manner and is provided 'with'a pinion b,

which through intermediate pinions b 'b b transmits movement to a pinion b, forming art of the sheet-feeding apparatus now to edescribed. D designates a feed-board adapted to receive a sheet pile, the forward end whereof rests upon a separator-roll d, driven or indirectly) by the inion b.

(directly E designates a fee -roll, and 6 a sheet-Passing roll, the feed-roll-E being driven (directly or indirectly) from the pinion b and carrying loosely mounted thereon a pinion ef. The passing-roll e is also driven from the plnion b and has a pinion e meshing with the looselymounted pinion e to transmit movement to the aper-stolpping apparatus presently to be exp ained. referably the connections between the rolls referred to and the power.

transmitting device (represented by the pin- 1011 b) will'be generally similar to those depreferably mounted in bearing-blocks H (presently to be described) andpasses through elongated vertical slots g, formed in hangers 9, depending from the reverse-roll support G. Said shaft is also provided atone end with'a pinion f, meshing with the pinion e, loosely mounted upon the shaft of the feedroll E, and therefore receiving in the preferred form of the invention continuous movement, but in a direction the reverse of the direction of movement of said feed-roll.

If desired, there may be aclutch device F between the shaft of the reverse-roll F and the pinion f, and such device may be the same in construction as the similar devicesset forth in' my former patent.

Secured, to or formed integral with the bearing-blocks H are rods h, the upper ends whereof pass through openings in the support G and into or through similar openings in a cross-bar G, secured by any suitable means, such as screws, upon said support. .The upper ends of said rods h are screw-threaded for coaction with adjusting-nuts I, here shown as of circular form and arranged between the sispport G and the cross-bar G. The upper s aces of said adjusting-nuts I are graduated, (see Fig.2) and with these graduations may coact a mark or other indication '5, formed upon the edge of the cross-bar G. The upper surface of the cross-bar isalso preferably provided with arrows indicating the proper direction in which to turn the nuts I in order to raise or lower the bearing blocks H, and conse uently the shaft of the reverseroll F. Itwill thus be seen that by the means described the relation of the reverse-roll F to the feed-roll may be very nicely adjusted and also that the former may be raised or lowered evenly, so that its peri hery shall at all times lie absolutely paralleFwith that of said feed-roll. In order to prevent the nuts I from jarring loose, and thereby throwing the reverse-roll out of adjustment, I preferably arrange below each of said nuts and bearing pen the upper surface of the-support G a spring-washer or other suitable device 'i.

designates a sheet-guard, here shown as comprising a U-shaped strap, preferably of metal and provided with elongated vertical slots through which the shaft of the reverseroll F extends. Said guard may be supported in either or both of the following waysto wit, by coaction of the up er portions of the slots with the reverse-roll shaft or by the headed pin 1; secured thereto and extending through an orifice in the reverse-roll support G and the head whereof is arranged upon the upper side of said support, such pin being freely movable in such orifice. The extremities of said guard extend very close to, but do not uite touch, the periphery of the feedroll As in the corresponding part shown 'in my former patent, the forward lower corhers of the paper-guard are curved or beveled;

in order to give a similar curve or bevel to the advancing forwardedge of the-sheet pile.

, The reverse-roll support G and mechanism attached thereto may be secured in position in any suitable manner, and, if desired, provision may be made for moving the same forward or rearward inorder to obtain an ad-- justment of the reverse-roll relatively to the feedroll, such as that suggested in my former patent. In the present instance'l have shown said reverse-roll support as secured by means of screws m to ears formed on and projecting inwardly from the side members A A of the frame.

In practice I prefer to employ above-and coacting with the passing-roll e a gravity-roll N; This may be conveniently supported in arms a, pivoted upon the hangersg and spring-pressed by means of springs n to as sure close contact between said gravity roll N and said passing-roll 'e.

Rearward of the feed-roll E (in the present case rearward also of the passing-roll e) a belt-roll P, mounted upon a shaft 1), provided with a inion-meshing with the pinion e on the shaft of the passing-roll e, to receive (preferably continuous) movement thereform. If desired, however, said shaft may extend through the side plate A of the frame and be there provided with a pinion receiving movement from one of the pinions 11 1f li er an other pinion driven by oneof these. 9

P designates a roll similar to the roll P and mounted upon a shaft journaled in the side members A A of theframe. Saidrolls P and P carry an endless belt or apron the upper surface whereof lies in substantia y thesame plane as the point of coaction between the reverse-roll F and feed-roll E and the point of coaction of the gravity-roll N and roll e. Upon shelves R, projecting inwar y from the side members A A of the frame or otherwise suitably su ported, are adjustable guides r, the object w ereof is to preventds arr I ement of the sheets in their passage fromt e sheet-feeding apparatus to the stencil -l ihrinting or other evice.

9 operation of the mechanism has been 13 indicated to some extent in connection with the foregoing description. The sheet pile is laid upon the feed-board with its forward edge resting upon the separator-roll d. The mechanism being then put in operationas, for instance, by the rotation of the drum B said separator-roll d and the feed-roll E are I roll and feed-roll and between the assing-roll e and gravity-roll N upon the en less belt or apron 2), whereby its rearward movement is continued until said sheet reaches a point where it is grasped or otherwise. acted upon by the stencil-printing or other device.

Having now described my invention, what I claim as new therein, and desire to secure by Letters Patent, is as follows:

1. In pa er-feeding apparatus, the combination wit a feed-roll, of an overlying reverse-roll, a detachable support, av looselymounted paper-guard carried'thereby, and adjusting mechanism between said reverseroll and said support, substantially as set forth.

2. In paper-feeding apparatus, the combination wit a feed-roll, of an overlying reverse-roll, a su port therefor, ra cross-bar above and para lel to said support, and .adjusting mechanism carried by said support on either side of said reverse-roll and including a graduated member lyi (g between said support and cross-bar,for a justing said reverseroll relatively to said feed-roll, substantially as set forth. I

3. In pa er-feeding apparatus, the combination wit a feed-roll and an overlying reverse-roll, of a support for the shaft'of said reverse-roll bearing-blocks receiving such shaft, an adjustable connection between said bearing-blocks and said su port, and a paperstop loosely carried b sai support and having portions arranged adjacent to either end of said reverse-roll substantially as set forth.

4. In paper-fee gapparatus, the combination with a feed-roll and 'an overlying reverse-roll, of a shaft for said reverse-roll,

bearing-blocks receiving said shaft, a support for said blocks, an overlying cross-bar substantially parallel with said support, and a screw adjustment for said blocks operable between said support and cross-bar, substantially .as set forth.

5. In paper-feeding apparatus, the combination with a separator roll adapted to coact' with the under side of a sheet pile, a feed-roll and. an overlying reverse-roll adapted to receive the lowermost sheets successively from said separator-roll and sheet pile, of a sup' port for said reverse-roll, a eross-barparallel with said support, a member lying between said support and bar adapted to adjust the feed and reverse rolls relatively, and an endless belt rearward-of said feed and reverse rolls and adapted to successively receive sheets therefrom, .said feed-roll, reverse-roll separator-roll and belt being driven from a common source of power, substantially as set forth.

6. In paper-feeding apparatus,

the combination with a separator-roll adapted to coact with the under side of a sheet pile, a feed-roll and an overlying reverse-roll parallel with said feed-roll, of a shaft for said reverse-roll, a

support, threaded rods connected with said sha t, a bar adjacent to said sup ort, and, graduated nuts lying between sai su port and bar and coacting with said threaded rods and said support for adjusting said reverseroll relatively to said feed-roll without throwin the same out of parallelism therewith, suIistantially as set forth.

. 7. In pa er-feeding apparatus, the combination with a feed-roll and an overlying reverse-roll, of a shaft for said reverse-N11,.

bearing-blocks in'which said shaft is mounted, a support, a bar overlyingand substantially parallel with said support, threaded rods extending from said blocks, and nuts coacting with said rods and with said support. and overlying bar, said nuts having graduated faces, the raduations thereon cooperating with an indicating-mark having a fixed -osition relatively to said support and overyinglbar, substantially asset forth.

T 's specification signed and witnessed this 30th day of January, 1905.

' ALBERT B. DICK.

Witnesses: I v n W. W. WATERBURY, .R. R. H RRINGTON. 

